Felipe Marino marinofelipe
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marinofelipe
/ ViewController.swift
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April 8, 2019 03:22
Blog post / Dynamic Type - Setting a dynamic size text to a label using one of system's built-in text styles
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| label.font = UIFont.preferedFont(forTextStyle: .body) |
marinofelipe
/ ViewController.swift
Last active
April 8, 2019 03:22
Blog post / Dynamic Type - Adapting the label to adjust for content size category changes
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| if #available(iOS 10.0, *) { | |
| label.adjustsFontForContentSizeCategory = true | |
| } |
marinofelipe
/ ViewController.swift
Last active
April 8, 2019 03:22
Blog post / Dynamic Type - Shows how to listen to content size category changes above and under iOS 10
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| private func adjustForContentSizeCategoryChanges() { | |
| if #available(iOS 10.0, *) { | |
| label.adjustsFontForContentSizeCategory = true | |
| } else { | |
| NotificationCenter.default.addObserver(self, | |
| selector: #selector(self.didChangeContentSizeCategory), | |
| name: UIContentSizeCategory.didChangeNotification, | |
| object: nil) | |
| } | |
| } |
marinofelipe
/ ViewController.swift
Last active
April 8, 2019 03:23
Blog post / Dynamic Type - Setting a scaled custom font using UIFontMetrics with title1 text style
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| if #available(iOS 11.0, *) { | |
| if let font = UIFont(name: "custom", size: 20.0) { | |
| label.font = UIFontMetrics(forTextStyle: .title1).scaledFont(for: font) | |
| } | |
| } |
marinofelipe
/ CustomFont.swift
Last active
April 8, 2019 03:23
Blog post / Dynamic Type - App's custom fonts enumeration
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| enum jurassicPark: String { | |
| case | |
| regular = "JurassicPark-Regular", | |
| semibold = "JurassicPark-Semibold", | |
| bold = "JurassicPark-Bold" | |
| } |
marinofelipe
/ ScalableFont.swift
Last active
March 13, 2019 04:13
Blog post / Dynamic Type - Defines scalable fonts behaviour and extends itself when conditionally conforms to raw representable of raw type string (what we use in our custom fonts)
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| protocol ScalableFont { | |
| func scaled(forTextStyle textStyle: UIFont.TextStyle?, maxSize: CGFloat?) -> UIFont | |
| } | |
| extension UIFont: ScalableFont { | |
| func scaled(forTextStyle textStyle: UIFont.TextStyle? = nil, maxSize: CGFloat? = nil) -> UIFont { | |
| let fontMetrics = textStyle != nil ? UIFontMetrics(forTextStyle: textStyle!) : UIFontMetrics.default | |
| if let maxSize = maxSize { | |
| return fontMetrics.scaledFont(for: self, maximumPointSize: maxSize) | |
| } |
marinofelipe
/ UIFont+CustomFont.swift
Last active
March 13, 2019 04:13
Blog post / Dynamic Type - UIFont extension with jurassic park font that adopts CustomFont protocol
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| extension UIFont { | |
| enum jurassicPark: String, CustomFont { | |
| case | |
| regular = "JurassicPark-Regular", | |
| semibold = "JurassicPark-Semibold", | |
| bold = "JurassicPark-Bold" | |
| } | |
| } |
marinofelipe
/ UIFont+Optional.swift
Last active
April 8, 2019 03:24
Blog post / Dynamic Type - Extending Optional when the wrapped value is of type UIFont, so we can return the custom font object or precondition failure
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| extension Optional where Wrapped == UIFont { | |
| var unwrapped: Wrapped { | |
| switch self { | |
| case .some(let font): return font | |
| case .none: | |
| preconditionFailure(""" | |
| Could not load font from available fonts: | |
| \(UIFont.familyNames.joined(separator: ", ")) | |
| """) |
marinofelipe
/ UILabel+Factory.swift
Last active
March 13, 2019 04:15
Blog post / Dynamic Type - Using static factory to generate a specific label that has custom scalable font and adjusts it for content size category
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| extension UILabel { | |
| static var scaledTitle: UILabel { | |
| let label = UILabel() | |
| label.adjustsFontForContentSizeCategory = true | |
| label.font = UIFont.jurassic.scaled | |
| label.numberOfLines = 0 | |
| return label | |
| } | |
| } |
marinofelipe
/ ViewController.swift
Last active
March 13, 2019 03:52
Blog post / Dynamic Type - Final usage for custom fonts and auto updating views
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| @IBOutlet weak var outletLabel: UILabel! | |
| private lazy var titleLabel: UILabel = UILabel.scaledTitle | |
| private func setupLabels() { | |
| view.addSubview(titleLabel) | |
| outletLabel.font = UIFont.jurassicPark.bold.scaled(forTextStyle: .body, maxSize: 30.0) | |
| outletLabel.text = "Dinosaur" | |
| } |
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